A healthcare provider wants virtual machines to remain operational if one datacenter fails. What should they implement?

Availability Zones are physically separate datacenters within an Azure region, each with independent power, cooling, and networking. Deploying virtual machines across multiple Availability Zones ensures that if one datacenter experiences an outage, the VMs in other zones remain operational, providing high availability for critical applications. Azure Scale Sets are used for automatically scaling VM instances based on demand, not for datacenter-level fault tolerance. Azure Update Management helps manage updates for VMs but doesn't protect against datacenter failures. Azure Site Recovery is a disaster recovery solution that replicates workloads to a different region, which is a broader scope than ensuring operational status within a single region's datacenter failure.